Capt. Isaac Damon appears to have been the leading architect of Western Massachusetts from 1812 to 1840, his influence on public and ecclesiastical work being even greater than [Asher] Benjamin’s on domestic. He designed and built at least thirteen churches in this region and nearly all the town-halls and court-houses; his specialty, however, was bridges, and there are several of his drawings still preserved

As the church neared completion, on November 6, 1824, two letters signed by the men working on the church were placed in a box inside one of the columns. These were rediscovered during a restoration in 1950 (see pdf article) and reveal that the workers came, not from Southwick, but from many other towns in the region.